Description
Overview:
The constellation Hydra (pronouced hi' druh) is the 1st largest constellation in the night sky with
an area of 1303 square degrees. The name of this constellation means Water Serpent.
Location:
Hydra is located at Right Ascension 10 h and Declination -20°.
Hydra is best seen between latitudes +54° and -83° in the April.
Hydra is adjacent to the following constellations: Antlia,
Cancer,
Canis Minor,
Centaurus,
Corvus,
Crater,
Leo,
Libra,
Lupus,
Monoceros,
Puppis,
Pyxis,
Sextans,
Virgo.
Stars:
Hydra contains within its borders approximately 71 visible stars. The principal star of Hydra is Alphard. The brightest star is HR 4458 (31.1 ly).
Hydra also contains within its boundries the following noteworthy stars: Alphard.
Visual Magnitude:
Hydra is the 19th brightest constellation with a visual magnitude of 5.45.